Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

N/A

Humidity NA
Wind Speed Calm
Barometer 29.93 in
Dewpoint N/A
Visibility 10.00 mi
Last update 5 Sep 10:15 pm CDT
Extended Forecast for

New Douglas IL

  • Tonight

    Tonight: Partly cloudy, with a low around 69. Northeast wind around 7 mph.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 88. Northeast wind 6 to 11 mph.

    High: 88 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. East wind 6 to 8 mph.

    Low: 61 °F

    Mostly Clear

  • Labor Day

    Labor Day: Partly sunny, then gradually becoming sunny, with a high near 88. East wind around 6 mph.

    High: 88 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. East wind around 5 mph becoming calm  after midnight.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. Northeast wind around 7 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 88. Northeast wind 6 to 11 mph.
Sunday Night
Mostly clear, with a low around 61. East wind 6 to 8 mph.
Labor Day
Partly sunny, then gradually becoming sunny, with a high near 88. East wind around 6 mph.
Monday Night
Mostly clear, with a low around 62. East wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68.
Thursday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 62.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 86.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 62.
Saturday
A 20 percent chance of showers. Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
New Douglas IL
 38.98°N 89.67°W (Elev. 620 ft)
9:01 pm CDT Sep 5, 2026
10pm CDT Sep 5, 2026-6pm CDT Sep 12, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database